Knitting machine



Augc 26 R924. ,505,973

l A H. sEuDERs KNITTTNG MACHINE Filed Sept. l2, 1922 lO Sheets-Sheet lMr l1 ugilq HI Illunm un lli www Ill W @s I l,

MUM(

A TTORNEYS.

Aug. 26 w24., @95%,913

' H. SEDERS KNITTING MACHINE Filed Sept. l2, 1922 lO Sheets-Sheet 5v L E193 Z215 (542% Il l 1.190#rv jg;

WITNESSES:

Aug. 26 B924. ,505,973

H. SEHDERS KNITTING MACHINE Filed Sept. l2 1922 lO Sheets-Sheet 4 FIC?.ZZIZ W l TNESSES:

All@ 25, w22@ @95%,973

H. SEHDERS KNITTING MACHINE Filed Sept. l2o 1922 10 SheetsuShee; 5

WITNESSES:

Aug@ 26 v 39M Filed Sept. 12 1922 W1 TNESSES:

www@

H. SEHDERS KNITTING MACHINE 10 Sheets-Sheet '7 uw iillllllllmllll.I ZZ'win Si 19.7 ZM

Aug 26 11924. 3505,93@

H.SEIDERS KNITTING MACHINE El@ m A 1 j f lmmlllllllf 11 L ,69 L;WITNESSES.- y 59 E 457 t, by fl INI/ENTOR- KNITTING MACHINE Filed sept.12 1922 lo sheets-sheet 9 INVENTOR: Y ,Zzser Slrs,

B y WM TTORNE YS.

Am@ 2 W24., 1955y973 H. SEHDERS KNITTINGMCHINE Filed Sept.v l2 1922 1 0Sheets-Shag?, l0

ATTORNEYS.

MAC

nppica'ton xled september i2, 292%,

A "he nuxiiinry ods ric'srrninc ish@ j of cornncncsmcn'b of (ins ciocirstrip-cs, prom-action of ornamentation. one oncis of the cocir stripes,cessation of che opsrsfcion of 'ins arc nary foods during ne of the imeipooirsss resumption aciviy of the :if/sois at thc confoision one liceipocirc' so chain che ciocir iA f menta'ion "no continued sions bho fooi:porions ne stock' @ther objscs and n To @55 whom 25 may @0f/wem:

if@ known that L Hns'rnn grimms, s oof tho Unire@ Stat-es, residing ntBending, coun'y or. Barks5 and Sta-.ro lcjcnnsylVania9 have invsnscicertain 3W nn i nssn nprovomcns in Kniing l cifnss, whereof ino oiiowingis a, snscnsationv reference being "had to fino accomcirWingse MJinvention roa'tcs no knitting fnac'J and iizs primary object is fa-osnanic procuro- -crnnnicnation such for srampio as my n Jsn'tion Wiii berondiiy -1 so-csiisd clock srijncs upon hosiery concnriii@ cieaiiedciescripion anni reni/ij; wish in@ irntbing fthe fabric so Sno scopsofmy invention Wii? v 21' ons@ an a'lfbrsc'aivo and sainbio produc indie aposnricd ciains,

be obfnincd Wi'rbhouft ne objsctionsbie *groinc @ra-.Wings Figure smnsrnncos cimraceristic of hosi ry whore View of a iniing mach onornsrnsn vsion subs/sc 'xeniy rnpiier. embodying my invention as it iisen obra by sion @sans Viewec, from *one Viront7 v whsrsby nnxiiiary tone noedies 'ons sfzsndun silnui'nnsonsy n@no Figur/'s l; nim/sci 'toproucs the bod c viewed moans 'whereby ons 'csoinrf o s is porsoeofrs cconvonicndiy when scc'zionsi View of ics-sci oy 'ins nr such as s1 moansi cci Sti? anofiior objec' of my inver prow/ido summary yarn feedingmechanism for producing ornamental sfccs for use in as indicdsd. byconjuncion with machines especially ndsptarrows "if l Figure ed :for rhomanu'scisuro o1?. nerfs *full or naif Figure A is n oisai' sectionalView Laken hose in which after n ribbs top, knit on a as inc icaied bythe arrows X-l in spcciai nia-chine, is transform@ 'for compiouro "WH,

ion of the ieg ami foot portions in pro- Figure X is a fragnicniary-esii socsion m5 ongation. Wish die @noi in View if 'provide of cherocker arm which is instrlnnen'ai in mea-ns for automaticaiy withdrawingthe imparting osoiila'fory motion 'o ne. auxiauxiiary yarn :feedingmoans from a normai iary yarn scs'. v y position in proximity 'bo theimirtng eie- Figure U is 2idcta-ii sectional 'View baken No as ndicaedby the arrows X--X in Figure XV.,

Flgurs XM is @n amai sectional 'nsw o' ments so as to permit access tofaire needle cyiincr necessary 1n @Hearing transfer, together Wlth meansror controihng she operathe housing for the auxiliary yarn feedstogether with the means whereby it is supported.

Figure Xlll is a sectional plan taken as indicated by the arrowsXlll-Xlll in Figure Xlll.

Figure XFV is an axial section indicated by the arrows XlV-Xll in FigureXH.

Figure XV is an elevation of the housing for the auxiliary yarn feeds asit appears when viewed from the left of Figure XH, and showing themanner in which the auxiliary yarn is fed to the knitting needles.

Figures Xll and XVM are sectional views taken as indicated by the arrowsXVl-Xl/'l and XVlll-XVH respectively in Figure XH.

Figure Xlllll is an inverted plan view taken as indicated by the arrowsXlflll- XVlll in Figure XH.

Figures XIX and XX are diagrammatic fragmentary sectional views showingthe means by which the depressors for the auxiliary yarn are actuated.

Figure XXl is a perspective view of one of the auxiliary yarn feeds inisolation.

Figure XXlll is a similar View of the holder element to which theauxiliary yarn feed is adjustably attached.

Figurej XXlll is a detail cross-sectional view showing the means wherebythe auxiliary feed is clamped to the holder element after the properadjustment has been se.

cured. o

Figure XXF is a perspective view of one of the jacks whereto the holderfor the auxiliary yarn feed is fulcrumed.

Figure XXV illustrates the appearance of a stocking produced by myimproved knitting machine.

Figure XXVI is a diagrammatic view showing the manner in which theauxiliary yarn is wrapped about a definite group of knitting needlesunder sweeping action of the auxiliary yarn feed.

Figure XXVlfll is an illustration of thel sprocket chain whichdetermines the length of the stocking knitted. on the machine.

Figure XXVHI is a similar view of the supplemental sprocket chain whichcontrols the raising and lowering of the auxiliary yarn feedingmechanism also certain of the elements embodied in said mechanism; andFigure XXlX is a fragmentary view of the measuring chain showing thesame in the performance of one of the special functions alloted to it.

Referring first to the general illustrations Figures l to V inclusive,it will be observed that the knitting machine therein shown comprises aknitting mechanism generally indicated by the numeral l, and anauxiliary yarn feeding mechanism with appropriate control devicescomprehensively indicated at '30. The knitting mechanism includes a.height from the floor..

Menara needle cylinder and various other parts of' the knitting machine.rJlhe bed plate 6 is in turn mounted upon an appropriate standard 7 soas to be sustained at a convenient The drive for vthe cam cylinder 4further includes a shaft 8 with tight and loose pulleys 9 and l0.,respectively, adapted to be coordinated by means of a belt (not shown)with driving v means which may be of any approved type suitable for thepurpose., A trigger actuated belt shifting mechanism l1 capable ofautomatic operation as later set forth serves to transfer the drivingbelt from the tight pulley 9 to the loose pulley 10 to stop the machineat various stages in the knitting of a stocking. lln order that the camcylinder d may be oscillated in the production of heel and toe pockets,a suitable clutch organization 12 is also provided, the shifting of saidclutch mechanism being controllable through a hand lever shown at 1.3 inFigure ll. rllhe clutchmechanism 12 aforesaid is of standard design andthe details thereof have therefore been omitted from the drawings. 'llhecam cylinder 4, in addition to the usual knitting cams has alsoassociated with it, pickers which are operative upon the needles duringthe formation of the heel and toe pockets in a well known manner andother standard accessories usual as well as necessary to the productionof hosiery. The main -or body yarn M is supplied to the needles 3 from abobbin B mounted with others upon a carrier 14: attached to the camcylinder 1land guided first between friction disks 15 supported byv thecarrier thence through a notch in a bow of bent wire 16 to an eyelet 17at the end of a tension spring arm 18, and finally through a feedaperture in a latch guard ring 19 which encircles the protruding ends ofthe knitting needles 3, (see Figures ll and lll). The length of thestocking is controlled in a well known manner by al measuring chain 20passing about a driving sprocket 21 which is mounted on a shaft 22Journaledin suitable bearings of the bed plate 6. Secured upon the shaft22 with the sprocket 2l is a ratchet wheel 23 (See Figure dill)arrangeur` to be intermittently progressed by a pawl 24 reciprocated byan eccentric or analogous means coordinated with the main driving shaft8 of the machine. rllhe measurin chain 20 carries at one side, a seriesof hig links 25, 25a, and 25b which cooperate with shifting mechanism 11aforementioned. The

osciiiacory a beei @ooi/iet5 i? the pickers, eiul ',ions so iba@ *sonknitting may be of die inst/e9 of ooninuousij/ as ion oi ine Mac-nedWhere die eye again Jae automaticaiiy so foiin the s Te'aiatoiy to e@bis eycie of i'epeated 't stockings,

aions being;` oonunuousiy eoesswe poouo'ion of 1in-e ce 'ine inavonineis arranged a ooez? oi in oiiei Words, "io con n n :ijaorics on einermachines and subsequently ansfe'freof 'ne machine undei eonsideia'zionfor ooinp ance Wien estab oracice in oi. o neini, Wiidce feeds ny 'Winoo'the auiiii tion of oin special consid in Lne sto-siiing,

Coming nos' meenamsm7 eetij; above and having ingiaiiy oinied ibeieivbi'aciet eaten designed ibo oveibang tbe needie (1j/'ia Suspended zbeend of 'die bracite' ex'cension 33 is a housing in which die operaibingmechanism for `he auxiiiaij,7 j/ain feed is conceaied and protected.Eefeiiingj now more paiticuaiiy to Figures l io XVH inoiusiven it wiiibe noted that 'ine housing 34 inciudes a su p" porting niembei 3G whichis generaiiy oiicniai' in form and secured o the lower end of a sieeve37 axially aligned wich iie neede cylinder 2. This sleeve 3'? is heid,Wib. provisions for-adjustment, in a spii't clamp boss 38 forming partof the oveibanging extension oi be ffaune 3L The suppoiing ineinbei' 36has *Cadiai slots Si# foi guidance of jacks 38a ffoin which dependintegrai buts or spuds 39 for actuation by a cam groove C0 in a disk alsecured to the iower end of Veiicai shaft a2; fine ia'tei being iouinaedfoi iosation wionin tbe sieeve 37 aforemen- *ioned The portion of theshaft. 4:2 above sieeve 3"? has suppoit afbeaiing 43 aise oinino an'c oi#be ovcibanging baeiaet. Fiona igufe if; is *no be especiaiiiy obseivediie conguiaion of c in tbe diei ii is snob as 'to deceiinineiecipiocaloi] motion of be jacks This motion is iinpa'f'ed io holdersfor 'die auxiiiay feeds 55 in the oiin of aiins fl y 'vircue o. diepivoa. eonneccion oi the dbe aois 08; The auxiiiaiy -eeds L( guie l?'--i have i'eaii n g siianks 3, so bai; "Lbey o in adiiised ooeiions go(the e I i by -means of si which einbiace said ainis f The ciampingaction fefiotaabie clamping devices 8 ecoenLie jooiions i3 enga,adjacent 'be ends ie et' tbe are "if une auxiio ne ends i;- aie oionsuon as to comH diary Vai-n .L o groups n j as may be on 4' enai pa- A11s oeiiiatoiy "ii-ging iibe cfa cai'ovided ependmgn pins i eizs 52guided iol i'eoipiooa'tion ifadi y in grooves 53 oi guide pieces whichare set, in Jche peiipberai flange 'mili of a cover ineinber o5 oiiningpari Jdie housing 34. rThis @over member has an inegrai aXiaiproiongaion in she oiin of an upwardly eX- ending sieeve 5Gy capable ofmoving independently about the fixed sleeve 37 of the supportingineinber 3G of the housing 34 The seeve 56 eiminates at a iegion betweenCIJ the split clamp boss 38 and a bearing 57 of the Overhang32 andsecured thereto at this point7 is a lever arm 58 which, in being swungback and forth imparts oscillatory movement to the housing member suchoscillation being in turn transmitted to the auxiliary yarn feeds 35.rlhese yarn feeds 35 are thus given a compound motion which, as will bebest understood from Figure XXVl, begins with the full line positionfrom whence said feeds are first shifted substantially concentricallywith the needles 3 at the inside of the latter, thence projected forwardthrough said needles lmmediately following this latter movement thefeeds 35 are swept along the needles 3 to to the outside of the latterand finally retracted radially to the original position of startingthereby laying or wrapping the auxiliary yarn about a number of saidnee? dles, the number comprehended in the sweep of t-he feeds beingdetermined by governing mechanism yet to be explained.

rllhe appearance of the auxiliary yarn A upon the face of the knittedfabric is predetermined by definitely controlling the laying Y of saidyarn at the time of its feeding to the needles 3 with respect to thefeeding level of the main or body yarn lvl; or, in other words, in orderto obtain the desired effect it is necessary that the auxiliary yarn Abe placed on the shanks of the needles 3 below the level at which thebody yarn M is fed. l accordingly provide for depressing the auxiliaryyarn A immediately upon its being wrapped about the needles 3 aspreviously explained and before the region of the feeding of the main orbody yarn M is reached. rlhe means which l employ to this end comprisesarcuate depressors 6() curved in conformity with the periphery of thehousing 3st to move in close proximity to the latter. rFliese depressorsare secured to the ends of arms 61 mounted to swing independently aboutthe shaft 42 as an axis. The forward or leading ends of the depressors60 are beveled as at 62 to afford inclined edges which, as saiddepressors are moved to pass over the portions of the auxiliary yarn Awrapped about the needles 3 and .in reaching a position indicated in dotand dash lines in Figure XV, depress said auxiliary yarn A to a levelslightly above the tips of the needle latches when in open position`thereby allowing ample leeway for feeding of the main or body yarn Mabove the same. rlhe arms 61 of the depressors 60 move within recesses63 in the bottom face of the member 36 of the housing 34-7. At a pointapproximately midway of their lengths, the arms 61 are apertured as at64 to receive balls 65 of such a diameter that they normally projectbeyond said arms at the lower side as clearly shown in the diagrammaticillustrations of Figure XIX, so

ioaeva as to be engageable by an upstanding projection or interruption66 in a concentric groove 67 formed in the cam disk 41 previouslyreferred to. IConsidering the direction of rotation of the cam disk Lllto be that indicated by the arrow in Figure XIX it will be apparent thatthe projection 66 will successively engage the balls 65 thereby carryingalong the arms 6l in the direction of rotation of said cam disk to anextent limited by the recession of the balls 65 into receiving cavities68 in the recesses 63 as clearly shown in Figure XX. See also FigureXlllll. After the passage of the projections 66 beyond the regions ofthe pockets 68, the balls 65 are released so that the depresser arms 61may be retracted to normal position against stop shoulders of the'recesses 63 at one side under the pull of helical springs 69accommodated in cavities 70.

rlhe auxiliary yarn A is supplied from bobbins l supported upon alcarrier 71 sup ported by the bracket extenson 32 of the frame 31.Beginning with the bobbins B the course of the auxiliary yarn threads isfirst through guide eyelets 72 supported by a tree 73 thence throughfriction disks 74. The auxiliary yarn threads are next directed to guideeyelets 75 supported by plates 76 sustained by short posts 77 at anelevation from the housing 34 for the auxiliary yarn feeds 35 as clearlyshown in Figures ll, XH, Xlll'and XV. ln addition to the eyelets 75 saidplates carry spring tension devices 78 which assist in maintaining theauxiliary yarns taut enroute to the eyes of the auxiliary yarn feeds 35.

For the purpose of controlling the action of the auxiliary yarn -feeds35 so that th@ extent of their oscillation and hence the scope of theirfeeding may be varied to p-roduce corresponding variat-ions in theornamental design effects, l have provided control or governingmechanism which comprises instrumentalities as follows:

'lhe lever arm 58 previously described as being secured to the slee-ve66 of the movable housing member 36 is coordinated through the medium ofa link 79 with a rocker arm 80. This arm 8O is formed with` an integralrock shaft 81 for journalling in a bearing boss 82 of the bracket 31.rlhe rocker arm 8O (see Figure X) is made hollow to receive a block 83capable of being moved longitudinally of said arm in order that theeffect of the latter upon the amplitude of oscillation of the auxiliaryyarn feeds 35 may be correspondingly varied.

The upper end of the block 83 has a clevis formed therein for receptionand pivotal attachment of the rear end of the link 79. The block 83 issecured by means of a clamp plate 84 to an endless belt 85 of flexiblematerial preferably steel passing over a re-difia modera recting idlerpulley 86 rotatably mounted in a bracket arm 87 depending from therocker arm thence horizontally through an opening in the rock shaft 81of the rocker arm 80 where it parallels its return run.A Uudue frictionbetween the parallel runs of the belt 85 at the region of directionalchange is avoided through separation by an arcuate plate 88.

Referring now to Figures l, 11 and 1V, the belt 85 will be observed toemerge from the opening through the rock shaft 81 and to pass over idlerpulleys 89 at the end of a supporting arm 90 fulcrumed about ashaft 91which is journalled in the upright portions 93-94 of the bracket frame31. rllhe idlers 89 serve in their turn to re-direct the two strands ofthe belt toward a drive pulley 95 fixed upon theshaft 91. The tiexiblebelt 85 is maintained under tension by a strut interposed between theupper end of the supporting arm 90 and the bracket 31 said strut beingin the form of a rod 96 with one end threaded for longitudinaladjustment in a sleeve member 97 whereby said rod is pivotally attachedto the arm 90. 'llhe shaft 91 is rotated in one direction or the otherby a reversible ratchet mechanisml including a ratchet wheel 98 havingtwo sets of teeth 99 and 100 which are oppositely pitched as clearlyshown in Figure V for selective picking by pawls 101 and 102respectively. These pawls 101, 102 are spring pressed in a directiontoward the ratchet wheel 98 and pivoted adjacent the ends of lever arms103 .freely rotatable about the shaft 91. The segmental gears 104secured to the pawl arms 103 are engaged by racks 105 slidable in guidemembers 106 also freely movable about the shaft 91 and connected attheir upper ends by a common pivot pin to the outer end of a lever 107which is pivoted intermediate its ends to a lug 108 of the bracket 31.rlhe free end of the lever 107 carries a roller 109 designed to engage arotary cam 110 appropriately configured to impart rocking motion to saidlever. The cam 110 is secured to a shaft 111 which extends in adirection longitudinally of a machine under support of journal bearingsof the bracket 31, and which serves to drive the shaft 42 of theauxiliary yarn feed mechanism through a miter gear couple 112,v seeFigure X11. Activity of the pawls 101-102 is selectively controlled by aguard 113 whose opposite ends are adapted to uncover one or the otherset of teeth 99, 100 of the ratchet 98. The pawl guard 113 is alsomounted for independent rotation about the shaft 91 by virtue ofattachment to a plate 114 hung from said shaft. rllhe gear 'teeth 115 ofthis plate are in mesh with an oscillating sector 116 fulcrumed about afixed pin 117 engaged in the bracket 31. rllhe sector 116 is in a formof a bell crank lever with its shorter extremity connected by means of alink 118 to a lever arm 119 fulcrumed at 120 to a post depending fromthe horizontal portion 32 of the frame 31, see Figure V. The oppositeend of the lever 119 is in turn connected by a. link 121 to a tappet arm122 pivoted to an upstanding post 123 also secured in the plate 32. 'lhefree end of the tappet arm 122 is beveled as at 124 for co-operationwith a pattern wheel 125 having peripheral notches comprehend.- ed bythe numeral 126 with subscripts, and elevations or projections similarlydesig. nated generally by the numeral 127. rl'his pattern wheel 125 isfixed to a shaft 128 journalled in bearing bosses of the uprightportions 93 and 94 of the bracket 31 and extends in parallelism to theshaft 91 aforementioned. The shaft 128 has also mounted upon it adriving ratchet wheel 129 arranged to be intermittently actuated by apawl 130 upon the free end of an arm 131 independently swingable aboutthe shaft 128. 'llhe arm 131 is oscillated by reason of being connectedthrough interposition of a rod 132 with an eccentric 133 on thehorizontal overhead shaft 111 so that as the latter is rotated,continuous oscillatory motion is imparted to the pawl 130. The action ofsaid pawl 130 is however controlled by a guard 134 pivotally attached toone end of a double armed lever 135 free upon the shaft 128, theopposite end of said lever being in turn coordinated by a link 136 withan arm 137 secured to a rock shaft 138, see Figures 1V and V. rl`helatter shaft 138 is supported for rotation in bearing pieces 139 securedto the plate 32 of frame 31 and extends forward toward the knittingmechanism 1 to afford attachment for a linger 140 normally occupying aposition within the path of movement of the pin 141 secured in the outerend of a dog 142 which is swingable about a stud 143 fixed in a lug ofthe bed plate 6 of the knitting mechanism 1. The dog 142 has aprojection 144 which rides upon the links of the measuring chain 20. Toone of the links of the chain is pivotally hung a bow shapedengagingmember 145 whose free end rests upon a special high link 146several plain links intervening. Other special cam links 147 and 148also serve to engage the dog 142 as will be later explained. rlllhecurvature of the member 145 is such as to be concentric with thesprocket wheel 21 in passing about the latter as clearly shown in FigureXXlX, and its length is such as to determine several successive pickingsof the ratchet wheel 129. rl`he pattern wheel 125 lis thus directlysubject to the measuring chain 20. ln accordance with the presentarrangement, the pattern wheel 125 is normally inactive and, as aconsequence of this and since the point of attachment of the link 79 tothe rocker arm 8O normally occupies the position shown in Figure llloscillatory motion of unvarying amplitude will be imparted to theauxiliary `feeds 35 through a range say over one or two needles 3 sothat the ornamentation is preordered as clock stripes. However, when thebow member 145 of the measuring chain 20 encounters the dog 142, thepattern wheel 125 is set in motion since through the movement of saiddog and the motion imparted through intervening elements, the guard 134for the pawl 130 is retracted thereby permitting progressive rotation ofthe driving ratchet 129 for the pattern wheel 125.

Pausing for a moment at this juncture to study the function of thepattern wheel 125 it will be noted that as' the same turns in thedirection of the arrow in Figure V, the free end 124 of the tappet 122first encounters the notch 126 in the periphery of said wheel as aconsequence of which the sector 116 connected by the linkage 118-119 and121 already explained to said tappet is shifted to uncover a number ofthe teeth 99 of the ratchet 98 thus permitting the pawl 101 to progresssaid ratchet in a clockwise direction. This movement is communicatedthrough the medium of the shaft 91 and the driving pulley to the elasticband 85 thereby shifting the block 83 in the rocker arm 8O and hencelowering the pivotal connection with the link 79. This results inimpartation of a greater throw to the oscillation of the auxiliary yarnfeeds 35 with correspondingly greater range of feeding so that theneedles 3 supplied in each special group is increased. When the tappet122 encounters the first projection 127 of the pattern wheel 125 asconsidered with reference to the direction of rotation, (Figure V), thepawl guard 113 is swung to uncover the teeth l with the result that theratchet wheel 98 is shifted counterclockwise thereby restoring thepivotal connection of link 79 to the rocker arm 80 to its originalposition. The operation of the pattern mechanism up to this pointdetermines the formation of a cross bar C in the clock stripe liD asillustrated in Figure XXV. The three notches 126, 1261, 126c arefunctional in magnifying the -amplitude of oscillation of the auxiliaryyarn feeds 35 for the next three courses of the knitting while the threesucceeding projections 127% 1271, 127c reverse the process therebydetermining an ornamental head H at the top end of the pin stripe P. Thelast of the notches of the pattern Wheel indicated at 126d determinesthe production of a second cross bar C in the clock stripe l), While thelast of the projections 127d effects restoration of the parts of thecontrol mechanism to normal so that from this point on the oscillationsof the auxiliary yarn feeds 35S-are unvaried thereby determining theproduction of plain stripes in continuation. Oveibanking in the courseof the shiftings of the pattern wheel 125 is obviated by a springpressed brake shoe 149, see Figure TT and V. Tn case the normal positionof the shaft 91 is disturbed by accident or otherwise it may be restoredto Such position by turning a winged collar provided for the purposeuntil arrested byy the engagement of a stop finger 151 with -a portionof the frame 31, see Figure T 'and' Tllll. A brake collar 152 effectiveupon the shaft 91 prevents impartation' of excess movement in the courseof the operation of the' reversible pawling mechanism.

Motion of the rocker arm 80 is induced by a disk cam'155 (Figure HI)fixed upon a vertical shaft 156 supported within bearings 157 of theupright member 94 of the frame 31, said shaft serving also to drive theshaft 111 by a bevel gear couple indicated at 158.

The cam has peripheral protuberances.

159 and also a groove 160, said protuberances and groove operating inconcert to eect 0scillation of a bell crank lever 161. This lever 161 isfulcrumed about a iXed pivotv post -162 and at its shorter arm carries aroller 163 which engages with the cam groove while its longer end isslotted as shown at 164 to engage with a pin 165 mounted in the end ofav slide bar 166 comprised in a motion translating device indicated bythe numeral 167 in Figure HT. To the lower end of the pin 165 aforesaidis secured a roller 168 whlcli engages the periphery of the cam 155. Thebar 166 is slidably guided within a casin of the device 167 which isscrewed to the p ate 32 and, at its inner end, has gear teeth in meshwith a segmental pinion ,169 concealed Within said casing. This pinion169 is secured to a shaft 170 which extends upwardly from the casing toa second motion translating device 171 whose details are shown in FigureXT. The lat-ter device 171, like the first, comprises a toothed slidebar 172 to which motion is imparted by virtue of intermeshing withanother segmental pinion 173 also secured to the vertical shaft 170. A.coiled spring 174 surrounds the shaft 170 and imparts torsion tomaintain the rollers 163 and 168 of the bell crank lever 161 inengagement with the cam 155. The upper end of the shaft 17 0 is`iournalled in a bearing member 175 formed with a boss 176 whichembraces the horizontal shaft 111, hereinbefore mentioned, and which isheld from displacement thereon between the cam 110 and the eccentric133. Movement of the slide bar 172 is in turn imparted, through aninterposed link 177, to a lever 178 attached to the end of the shaft ofthe rocker army 80 which protrudes to the opposite side of the bearing82. As best shown in Figure X, the pivotal connection between the link177 and the lever 178 consists of a pin 179 carried in a block 180 whoserear face is serrated for engagement with the complementarily serratedface of said lever, see Figure X. The

escasas transmission to-the arm 178, such amplification being directlycommunicated to the auxiliary feeds 35 so that further variations may beobtained in the ornamental eEect produced by them.

Although the machine as herein arranged is adapted to production ofclock stripes' upon hosiery, it is apparent that in lieu of such stripesvarious ornamental design patterns may be produced by successiverotations of the pattern wheel 125 and also hy varying its peripheralconfiguration in accordance with the design or ornamentation desired.Also, if desired the number of stripes may beincreased simply byemployment of additional auxiliary yarn feeds 35.

As previously stated, l have shown my invention in association with aso-called semi-automatic machine of the type used in completing halfhose after transfer of ribbed tops to the machine. rlherefore, in orderto make such transfer possible it becomes necessary to effectwithdrawal, or as in the present case, elevation of the housing 34 ofthe auxiliary yarn feeds 35 above the top of the needle cylinder 2 sothat either the latter may be removed for transfer or the ribbed topapplied to the needles 3. This desideratum l secure by mounting thebracket fra-ine 31 which carries the auxiliary yarn feeds 35, togetherwith their operating mechanism, upon a vertical post 185 which isslidalole in a bearing 186 formed as an integral part of an extensionplate 187 bolted to the main bed plate 6 of the machine. At one side,said post 185 is longitudinally grooved to accommodate with provisionfor independent movement a slide rod 188* F ig. Vllf-with gear teeth 189which are engaged by a gear pinion 190 (Fig. V1) appropriatelyjournalled adjacent the bearing 186. rl`his gear pinion 190 is in turn,in mesh with a worm 191 fastened upon a vertical shaft 192 whose lowerend projects into a gear casing 193 for attachment thereto of a beveledgear 194C, see Fig. VH. The bevel gear 194; is arranged to be driven byone or the other of two intermeshing pinions 195, 196 mounted forindependent rotation upon a shaft'197 journalled in the gear casing 193.To the right hand or protruding end of the shaft 197 (Fig. VH) issecured a drive pulley 198 which may be co-ordinated by belt with thesource of power which drives the machine proper, and is constantlyrotated. ln order that the pinions 195 and 196 may be selectivelycoupled to the shaft 192 according as to whether the post 185 is to beelevated or lowered, l have provided a clutch sleeve 199 whose oppositeends are appropriately configured to engage with projections on thecontiguous faces of the pinions 1953-196. rllhe clutch sleeve 199 has acentral .circumferential groove for engagement by a shifting fork 200secured to a slide rod 201. An actuating finger 202 engages within abifurcation formed in a depending lug of the fork 200, and is secured toa rock shaft 203 which protrudes to the exterior of the gear casing 193for attachment thereto of a lever 204. rThe end of this lever 204 lieswithin the path of collars 205-206, secured upon a rod 207 free to slidein guides 208-209, of which the first is secured lto the horizontalportion 32 of the frame 31 while the other projects laterally from thelower end of the toothed bar 188., A spring 210 whose function will belater disclosed encircles the rod 207 and is interposed between thecollar 206 and the guide 209. 'llhe operation of the means whereby thebracket frame 31 with its adjuncts is elevated, is initiated undercontrol of a sprocket chain 215 which is progressed synchronously withthe measuring chain 20 and moves about a sprocket wheel 216 mounted uponthe shaft 22 with the sprocket wheel 21. The chain 215 has at one side,cam projections 217, 218 which pass beneath the linger 220 secured upona rock shaft 221 supported jointly by a lug on the main frame 6 of themachine, and a similar lug formed on an integral appendage of the guidebearing 186 for the post 185. The movements of the rock shaft 221 areimparted through a lever 222 secured to said shaft and a connecting link223 to a lock mechanism 22d shown in detail in lFig. TLX of thedrawings. This lock mechanism 224 consists of a rod 225 with a latchblade 226 which is urged upwardly under the pressure of a spring 227toward the clutch actuating slide rod 201 which is notched as at 228 toreceive said latch blade. Upon withdrawal of the latch blade 226 fromthe notch 228 the slide rod 201 after being released is drawn to theleft (Fig. VH) as a result of gravity acting upon the arm 204. rlheconsequent engagement of the clutch sleeve 199 with the bevel pinion 195results in the rotation of the worm gear 190 in a direction to elevatethe bracket frame 31. ln the course of the upward movement of thelatter, the collar 206 on the rod 207 engages the lever 204 and isarrested until the spring 210 is fully compressed whereupon furtheryielding ceases. As a consequence, with forced shifting of the rod 207which takes place immediately the lever 20d is swung upwardly until itsmovement is intercepted hy engagement of the latch blade 226 of thelocking mechanism 224 with the notch 228 in the shifter rod 201. Theclutch sleeve 199 is thus restored to and held in the normal neutralposition with the bracket 31 fully elevated and at rest, with thehousing 34 which supports the auxiliary yarn feeds 35 entirely clear ofthe needle cylinder 2 so that the latter is accessible for transferpurposes. It is important to note that at this time, the spring 210 isstill compressed in readiness to efect shifting of the clutch lever 204for subsequent lowering of the auxiliary yarn feeding mechanism 30 aslater explained in connection. with the operation of the machine. i

The vertical propulsion shaft 156 is arranged to be driven by an alignedshort shaft section 230 journalled in the extension member 187 of themain frame 6 and coordinated with the main shaft 8 of the machinethrough a bevel gear couple 231. Interposed. between the shaft 156 andthe aligned section 230 is a clutch comprising the members 232 and 233,the former being splined for shifting on the shaft 156, while thelatteris secured directly to the companion section 230. The clutch member 232is shifted by means of a fork 234 secured upon a shaft 235 whereto isalso secured an arm 236 which is connected by a link 237 with a `pushrod 239 slidably mounted in a guide bearing 240 screwed `(to the plate32 of bracket extension 31. This push rod 239 is subject to a springconcealed within the bearing 240 which urges the protruding chamferedend of the rod (Fig. 111) toward the pattern wheel 125 and into the pathof lateral cam projections 241, 242 of the latter. To said pattern wheel125 is thus assigned the additional function of actuating the clutch forthe propulsion shaft 156 for the auxiliary yarn feed drive. This clutchshifting is however subject to the control of the sprocket chain 215which carries on the side opposite the cam projections 217-218,additional projections 243--244 for engaging a finger 245, said fingerbeing secured upon a shaft 246 journalled with the shaft 138 in thebrackets 139, see Fig. II. An arm 247 fixed to the shaft 246 is coupledby means of a link 248 with the slide pin 249 of a lock mechanism whichis identical with the lock mechanism 224 and shown in Figs. Il, 111, V,and VH as incorporated in the guide bearing 240 for the push rod 239.The slide pin 249 is spring-pressed so that the appended latch plate 250is urged toward the push rod 239 which is provided with a lnotch forengaging said plate, see Fig. 1V. When locked, the push rod 239 is heldretracted with its chamfered end out of the path of the lateral camprojections 241, 242 of the pattern wheel 125 and with the clutchcollars 232-233 disengaged as illustrated in Fig. Vl.

:escasas belt to the tight pulley 9 on the main drive shaft 8, and inthe process of knitting the leg portion of the stocking in directcontinuation with a ribbed top previously applied to the needles 3.Concurrently with the rotation of the main shaft 8, the sprocket chains2O and 215 are continuously progressed by picking of the ratchet wheel23. Plain knitting proceeds until the cam projection 243 on the sprocketchain 215 engages the finger 245 which results in the unlatching of thelock mechanism, 238, release of the push rod 239 to spring action, and,through the intervening parts already understood, the clutching of thepropulsion shaft 156 with the short shaft section 23() for directactuation by the main shaft 8 of the machine. rl`he auxiliary yarnfeeding mechanism 30 is thus set in motion for plain stripe productionwhich proceeds for but a few courses when the arcuate element 145 on themeasuring chain 20 engages the dog 142 to initiate pawling of thepattern wheel 125, with consequent production of the ornamentations H atthe tops of the clock stripes as shown in Fig. XXV. The length of theelement 145, it will be remembered is such that the pawling of thepattern wheel 125 continues only until the lateral cam projection 141 ispositioned in readiness to engage the push rod 239. In this position thepattern wheel 125 rests while plain stripes are continued down to thepoint at which the heel pocket is to begin. l/Vhen this point is reachedthe link 147 of the chain 20 engages the finger 142 to cause the singlestepping of the ratchet wheel 129, and with it the correspondingmovement of the pattern wheel 125, to bring the cam projection 141 onsaid wheel into engagement with the push rod 239 for effectingseparation of the clutch collars 232, 233. As a result of thisdisconnection, the auxiliary yarn feeding mechanism 30 is renderedinactive. Simultaneously withthe events just described, the camprojection 25 of the pattern `chain 20 engages the trip finger 26 incausing the driving belt to be shifted from thetight pulley 9 to theloose pulley 10, with consequent stoppage of the machine. As previouslystated this stoppage enables the operator to perform the functionnecessary or desirable in preparing the machine'for oscillatory knittingin 'the production of the heel pocket which immediately follows. rlhedriving belt is then shifted manually and the knitting of the lastmentioned portion of the stocking takes place automatically until thecam projection 25a of the asoaers e;

measuring chain 2O encounters the trigger ringer 26 to eil'ect stoppageof the machine a second time. Here the operator is given the opportunityto malte restorations necessary u to circular knitting so that thelrnitting of the foot portion of the stocking may "follow, bout the sametime that the high link 25- ot the chain functions, the projection onchain 215 engages the linger 245 to permit restoration ci' the clutchmembers 232 and into activity so that upon subsequent restarting of themachine, by manual shitting ot the driving belt, continuations of theclock stripes are produced si1nuleously with the knitting of thestocking Yfoot. rthe length oi" the segments of the cloflY stripe alongthe stocking toot is clemined by the positioning oi' the high link n onthe measuring chain 2G which in enthe clog irl-2 causes another single nthe ratchet Wheel and with whereby the iateral earn projecf-P ci saidpattern Wheel. is brought te engagement oint on 'the stocking root 'i li the usual manner un 'the measuring chain machine to permit tneoperator in i ire the necessary adjustments ess-ary oscillatory lrni toproduce This like the A the heele eutomaticaily to completion, wheniinlr C on i neasuring 'ects the sin of the machine to. a stop stoern fthe toe Qecket `nroclret chain 2 cooieiinat "ie clutcn 'ism whichcontrols the raising antl the auxiliary yajn mechanism s clutchmechanism 3G is operate@ bracket 3i with its apgendages z isecl-position in the manner previousiy *il* ilescribetlg P The nnisheclstocking may then emoverl 'from the needle cylinder 2 anfl by a ribbedtop a new stoeltminecliately. after the machine is started a camprojection Q18 on sprocket cliain 215 engages the linger 220 therebytripping the lock mechanism 224i andthrough the intermediate partsreleasing the clutch shift lever 204 to the action of the spring 210placed in compression during the elevation or" the bracket 31. Theraisingot this lever Q04, it vwill be noted by reference to Fig. Vil,will result in the engagement of the clutch collar l99 with the pinion1% so that the bevel gear 194 and the Worm gear ninion 190 are driven ina direction reverse of that ot the previous action, theren by bringingabout the lowering of the aus? iliary yarn feed mechanism to theposition shown in the drawings. The bracket 3l ottlie latter mechanismcomes to rest upon the top ot bearing 186 and immediately thereupon thecollar 205 on roel 207 engages the clutch lever 204 to depress the saineto the normal or neutral position with clutch collar l99 retracted fromthe pinion 196. any excess motion ot the gearing is absorbetl by virtueot the iereeclom accorclecl the bar i853 in the post so that the variousparts orQ the last described mechanism are protected against derangementor possible breakage.

lllliile have particularly 4clescribed one practical emboelinient of myinvention9 it ivill be apparent the saine is susceptible or considerabledetail motiilication anti varia tion Without departing from the spiritancl intent ot said invention as speciiically cietinerl by theappencleci claims,

' thus described my invention9 machine comprising a neeelle cylinder amain yarn reeel7 a number of auxiliary yarn teecls5 a sin rt for saiclauxiliary teecls co-a iai with ie needle cylinder, anti independentlyrotatable means -tor osciilating the support cause said auX- auxiliaryeecls eo-ai;ial with the neeule cylm intlepenclently rotatable means foros- -niating the sunnort to cause saint auainarv J c l eers to supplyyarn to cleiinite groups or Yhe needles, anni pattern means *forcontrolknitting mac ine com- 1 a neeauxiliary `leeds cc--aaial with theneeclle cyiinfler., independently rotatabl means osciliating thesujjnimrt9 anclmeans for incifientiy reciprocating saic` auxiliary yarnM supaort to cause yarn iieetls radi/ll of the ctenite groups the of theneedles to produce ornamental pattern effects in the knitted web.

5. A knitting machine comprising a needle cylinder and a main yarn feedcooperating with the needles thereof in knitting tubular fabric; incombination with a multiplicity of auxiliary yarn feeds, fulcrumed forhorizontal oscillation to slides in turn mounted for radial guidance ina supporting element concentrically disposed within the needle cylinder,a rotatable grooved cam engaging butts on said slides to effectprojection and retraction of the auxiliary feeds with respect to theneedles, and a housing member oscillatable independently of thesupporting element provided with means for engaging the yarn feeds toswing the same about their fulcra to wrap auxiliary yarn arounddefinitegroups of needles in order to produce ornamental pattern eects in theknitted tube..

6. A knitting machine comprising a needle cylinder and a main yarn feedcooperating with the needles thereof in knitting tubular fabric; incombination with a multiplicity of auxiliary yarn feeds mounted in asupport concentrically disposed Within the needle cylinder, means foractuating the feeds to wrap auxiliary yarn about definite groups of theneedles, and a depressor associated with each auxiliary yarn feed, saiddepressors being independently swingable about the axis of the aforesaidsupport so as to move over the auxiliary yarn to depress the same welldownward along the shanks of the needles to a position below the feedinglevel of the main or body yarn thereby to insure the auxiliary yarnappearing on the face of the knitted web in producing ornamental patterneffects.

7. A knitting machine comprising a needle cylinder and a main yarn feedcooperating with the needles thereof in knitting a tubular fabric; incombination with a multiplicity of auxiliary yarn feeds mounted in asupport concentrically disposed within the needle cylinder, means foractuating the feeds to wrap auxiliary yarn about definite groups ofneedles, and depressors, one associated with each auxiliary yarn feed,the dep-ressors being independently swingable about the axis of the saidsupport, and means for actuating the depressors so as to move over theauxiliary yarn to depress the same well downward along the Shanks of theneedles thereby to insure its appearing on the face of the knitted webin producing ornamental pattern effects, the last mentioned meansincluding a rotating element with a cam projection adapted tosuccessively engage protruding portions of balls seated in lever arms ofthe depressors to carry the latter along to an extent limited byrecession of the balls into cavities in the support aforesaid whereuponthe depressors tubular fabric; in combination with a multiplicity ofauxiliary feeds supported in a housing concentrically disposed withinthe circle of needles; and mechanism for oscillating the housing toc-ause the feeds to supply auxiliary yarn to definite groups of theneedles for production of ornamental effects in the knitted tubeincluding; a rocker arm coordinated with the housing through aconnect-ing link, and means whereby the point of pivotal attachment ofthe link is shifted longitudinally of the rocker arm so that the rangeof feeding the yauxiliary yarn is increased or decreased withcorresponding variations in the ornamental effect produced.

9. A knitting machine comprising a needle cylinder and a main yarn feedcooperating'with the needles thereof in knitting a tubular fabric; incombination with a multiplicity of auxiliary feeds supported in ahousing concentrically disposed within the circle of needles, andmechanism for oscillating the housing to cause t-he feeds to supplyauxiliary yarn to definite groups of the needles for production orornamental effects in the knitted tube including; a rocker armcoordinated with the housing thrnugh a connecting link, a block slidablelongitudinally in the rocker arm to which the link is pivot-allyconnected, and a flexible band subject to governing mechanismcontrolling shifting of the block so-that the range of feeding theauxiliary yarn is increased ordecreased with corresponding variations inthe ornamental effect produced.

10. A knitting machine comprising a needle cylinder and a main yarn feedcooperating with the needles thereof in knitting a tubular fabric; incombination with a multiplicity of auxiliary feed-s supported in ahousing concentric-ally disposed within the circle of needles; andmechanism for oscillating the housing to cause the feeds to supplyauxiliary yarn to definite groups of the needles for production ofornamental effects in the knitted tube including; a rocker armcoordina-ted with the housing through a connecting link, a block whereto.the link is pivotally connected slidable longitudinally of the rockerarm, said block being secured to a flexible endless band arranged to bedriven by a pulley disk rotatable in one direction or the other underactuation c-f a reversible ratchet mechanism, so that the range offeeding of the auxiliary yarn is thereby increased or decreased withcor-respending variation in the ornamental effect produced.

1l. A knitting machine comprising a nee-

